Infant jumper



FIG. 1 is a perspective view of an embodiment of an infant jumper showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front side elevation view thereof;

FIG. 4 is a rear side view thereof;

FIG. 5 is a right side elevation view thereof; and,

FIG. 6 is a left side elevation view thereof.

The broken lines immediately adjacent solid lines represent bounds of the claimed design and environment while all other broken lines are directed to environment and are for illustrative purposes only. The broken lines form no part of the claimed design. 

We claim the ornamental design for an infant jumper, as shown and described. 